html {
    height: 100%;
  }
  
  body {
    position: relative;
    top: 0;
    left: 0;
    margin: 0;
    padding: 0;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    width: 100%;
    height: 100%;
    overflow: hidden;
  }
  
  .app {
    $solidBorder: 1px solid #eee;
    $sideCollapsedWidth: 66px;
    $sideExpandedWidth: 230px;
    font-family: "Helvetica Neue",Helvetica,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","微软雅黑",Arial,sans-serif;
    font-size: 1em;
    width: 100%;
    height: 100%;
    min-width: 900px;
    border: $solidBorder;
    display: flex;
    display: -webkit-flex;
    flex-flow: row nowrap;
    &-side {
      width: 230px;
      height: 100%;
      font-weight: 700;
      border-right: $solidBorder;
      &-left {
        background-color: rgb(238, 241, 246);
      }
      &-logo {
        height: 60px;
        text-align: center;
      }
      &-collapsed {
        width: 66px!important;
      }
      &-expanded {
        width: 230px!important;
      }
    }
    &-header {
      width: 100%;
      height: 60px;
      display: flex;
      flex-flow: row nowrap;
      justify-content: flex-start;
      align-items: center;
      border-bottom: $solidBorder;
      &-userinfo {
        position: absolute;
        right: 0;
        margin-right: 25px;
        display: flex;
        flex-flow: row nowrap;
        height: 60px;
        justify-content: flex-start;
        align-items: center;
      }
    }
    &-body {
      font-size: 1em;
      width: 100%;
      height: 100%;
      padding: 20px;
      overflow-y: scroll;
    }
    &-footer {
      width: 100%;
      height: 60px;
    }
  }
  
  .inline-block {
    display: inline-block;
  }